3 guys walk into a bar. The 4th one ducks. A string walks into a bar and the waiter says to him,"We don't serve your kind here." So the string goes across the street and tells a friend to tie him in a knot and fray his edges. So the guy does it and the string says thank you. Then the strin g goes back across the street and goes into the bar and orders a beer. Again the guy says we don't serve your kind, but the string says,"I'm afraid not."(I'm a frayed not.)